package com.xxx.servlet;


import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;


public class BaseServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException{
        String uri = req.getRequestURI();

        int index = uri.lastIndexOf('/');
        String methodName = uri.substring(index + 1);
        //System.out.println(methodName);

        //获取字节码对象
        Class<? extends BaseServlet> cls= this.getClass();
        //获取对应方法
        try {
            Method method = cls.getMethod(methodName, HttpServletRequest.class,HttpServletResponse.class);

            method.invoke(this, req, resp);

        } catch (NoSuchMethodException e) {
            throw new RuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }

    }
}
